微软的net卸载工具官方出品+联想net安装工具

https://msdnshared.blob.core.windows.net/media/2018/05/dotnetfx_cleanup_tool.zip

官方地址：https://docs.microsoft.com/zh-cn/archive/blogs/astebner/net-framework-cleanup-tool-users-guide

The .NET Framework cleanup tool supports removing the following products:

.NET Framework - All Versions
.NET Framework - All Versions (Tablet PC and Media Center)
.NET Framework - All Versions (Windows Server 2003)
.NET Framework - All Versions (Windows Vista and Windows Server 2008)
.NET Framework - All Versions (Windows 7)
.NET Framework 1.0
.NET Framework 1.1
.NET Framework 2.0
.NET Framework 3.0
.NET Framework 3.5
.NET Framework 4
.NET Framework 4.5
.NET Framework 4.5.1
.NET Framework 4.5.2
.NET Framework 4.6
.NET Framework 4.6.1
.NET Framework 4.6.2
.NET Framework 4.7
.NET Framework 4.7.1
.NET Framework 4.7.2

联想的net安装工具：

http://tools.lenovo.com.cn/exeTools/detail/id/343